Perennial herb, geophyte, 0.2-0.4 m high; corm tunics brown, coarse, fibrous; stem usually with secund branches. Leaf 1, linear, canaliculate. Spathes herbaceous, apex brownish, attenuate. Inflorescence with purple flowers; nectar guides cream-coloured to yellow; tepals unequal, outer 27-30 mm long, reflexed, inner 6-10 mm long, entire, with expanded limb, erect, lanceolate to rhomboid. Stamens: filaments 3.5-7.0 mm long, united below; anthers 4-7 mm long, appressed to style branches; pollen yellow. Ovary ± 5 mm long; style branches 5-8 mm long; crests linear, up to 8 mm long. Flowering time July-Nov. Capsule ellipsoid to obovoid.
Cormous geophyte, 20-40 cm. Leaf solitary, linear, channelled. Flowers purple, inner tepals oblanceolate sometimes 3-lobed.